Filling nose for supplying liquid in a tank



Feb. 11, 19m

y YOUINOU FILLING NOSE FOR SUPPLYI NG LIQUID IN A TANK Filed Feb. 13,1968 2 Sheets-Sheet 1 2 Sheets-Sheet 2 V"In/ l A. YoulNou v Feb. 17,1970 FILLING NOSE FOR SUPPLYING LIQUID IN A TANK Filed Feb. 13, .1968

United States Patent 3,495,635 FILLING NOSE FOR SUPPLYING LIQUID IN ATANK Arsene Youinou, Paris, France, assignor to Compagnie des Compteurs,Paris, France, a company of France Filed Feb. 13, 1968, Ser. No. 705,129Claims priority, applicggigrgrance, Feb. 15, 1967,

Int. Cl. 1365b 1/04 US. Cl. 141392 7 Claims ABSTRACT OF THE DISCLOSUREThe present invention relates to a filling nose for supplying liquid ina tank, particularly inflammable liquids, such as petrol in oil-tanktrucks, so as to automatically reduce the delivery at the beginning offilling.

It is known that charges of static electricity accumulated especially bymotor-fuels have very serious dangers when the liquid is introduced intoan empty tank because of the flow speed on the bottom walls. It is thusnecessary to reduce the delivery at the beginning of filling, until thebottom end of the connecting member is covered by a certain quantity ofliquid corresponding to a level of 40 centimetres in the tank, forinstance. Beyond that level, we can consider that the delivery issufliciently diluted not to have too great speeds.

The difliculty is generally overcome by means of devices enabling thepredetermining of a certain volume or to measure a certain level. Thesedevices are generally complicated.

The present invention seeks especially to solve this problem in anextremely simple manner.

The object of the invention is a filling nose for supplying liquid in atank comprising a tube connected to a supply line for said liquid andthe lower end thereof delivering said liquid in said tank on the bottomthereof, said tube further having at least one lateral aperture, alimiting delivery member located in said tube and rigidly connectedtherewith between the lower end of said tube and said aperture, onevalve provided to close said aperture, a floating member mounted outsidesaid tube and guiding means associated therewith and carried by saidtube, said floating member being connected to said valve for its controlwhereby said aperture is closed when the liquid begins to be supplied insaid tank through said tube then progressively uncovered when the liquidreaches a level for which said floating member is actuated so as toincrease the delivery of the liquid.

The invention also has the object of a form embodiment particularlyadapted to large dimensioned filling devices. In the case of largedeliveries, the ascensional movement of the float is perturbed by theflow of the liquid through the apertures made in the filling nose.

The invention proposes to eliminate this disadvantage without thenecessity of using voluminous floats. To this end, it provides for acertain number of means by which the opening of the above-mentionedapertures is not only caused by the ascensional force of the float, butalso by an energy taken from the liquid itself.

Other characteristics of the invention will be revealed in the followingdescription, given in connection with the accompanying drawings, whichare cited as non-restrictive examples.

FIG. 1 shows diagrammatically the bottom part of the filling nose madeaccording to a first form of the inventron.

FIG. 2 shows, also diagrammatically, the bottom part of the filling nosemade according to a second form of the invention.

In FIG. 1, we see a tube 1 forming the bottom part of the filling nose.This tube 1 rests by its bevelled end 2 on the bottom of the tank.Inside this tube a frustoconical insert 3 is housed Whose bottom partconnects with the section of the end 2, the top part comprising a collar4. Said collar 4 enables the delivery to be limited, while the insert 3reduces speed between the collar 4 and the end 2. The tube 1 is alsosurrounded by a jacket 8 of perforated steel sheeting, for instance,inside of which is an annular float 5 surrounding the tube 1. The travelof said float is limited by stops 9 and 10 fixed on the jacket 8. Thefloat 5 is rigidly connected to an arcuate panel 6, which, according tothe level of the liquid, opens or closes apertures 7 made near the baseof the tube 1.

When the filling of the tank begins, the apertures 7 are closed and theliquid accumulates at the base of the tube 1. When the liquid issufiiciently high, the float rises, carrying along the panel 6 whichuncovers the apertures 7. The delivery which, up till then, was limitedby the collar 4, is increased by the flow of the liquid around theinsert 3, the liquid then escaping through the apertures 7. The jacket 8also has the advantage of protecting the float when the connectingmember is inserted in the tank.

Another embodiment adapted for large deliveries is represented in FIG.2, where reference numerals 1 to 9 designate the same parts as thoseshown in FIG. 1.

The panel 6 closing the apertures 7 is rigidly connected to a cylinder11 which slides vertically on an annular member 20 outsidely integralwith said tube 1. Two Washers 12 and 13 ensure the seal-tightness of thechamber 19 comprised between the tube 1 and cylinder 11. Said chamber 19is put into communication with the inside of the tube 1 by means ofpiping 17 whose orifice is placed facing the flow of liquid to theinterior of said tube 1. The chamber 19 is also put into communicationwith the outside air by means of an orifice 15. This orifice made in thetop part of the cylinder 11 can be closed by the flap valve 14 returnedto its seating by the spring 16. The passage section of the orifice 15is, by its construction, greater than that of the orifice of the piping17. A recoil spring 18 normally holds the cylinder 11 connected to thepanel 6, in a low position, the apertures 7 then being closed.

During the filling operation, the float 5 rests on the end of the valve14 and, compressing the spring 16, uncovers the orifice 15. The liquidunder pressure admitted into the chamber 19 through the piping 17, iseasily evacuated through the larger section orifice 15. When the levelof the liquid reaches the float 5, said float rises. The flap valve 14,Ietumed by the spring 16, closes the orifice 15, and the pressureincreases in the chamber 19. Under the effect of this pressure, thecylinder 11 moves upwards carrying along the valve 6 which uncovers theapertures 7, and the delivery of liquid is thus increased.

The number of orifices 15 and springs 18 may be of any figure, althoughonly one orifice 15 and one spring 18 are shown in the figure. Accordingto one form of embodiment of the invention, three orifices 15 areprovided at on the top part of the cylinder 11, and three springs 18intercalated between said orifices.

I claim:

1. A filling nose for supplying liquid in a tank comprising a tubeconnected to a supply line for said liquid and the lower end thereofdelivering said liquid in said tank on the bottom thereof, said tubefurther having at least one lateral aperture, a limiting delivery memberlocated in said tube and rigidly connected therewith between the lowerend of said tube and said aperture, one valve provided to close saidaperture, a floating member mounted outside said tube and guiding meansassociated therewith and carried by said tube, said floating memberbeing connected to said valve for its control whereby said aperture isclosed when the liquid begins to be supplied in said tank through saidtube then progressively uncovered when the liquid reaches a level forwhich said floating member is actuated so as to increase the delivery ofthe liquid.

2. A filling nose as set forth in claim 1 comprising further aperforated jacket surrounding both said tube and said floating memberwhereby said floating member is guided between said tube and saidjacket.

3. A filling nose as set forth in claim 2, comprising further stopsprovided at the ends of said jacket and carried thereby to limit thetravel of said floating member.

4. A filling nose as set forth in claim 1, in which said valve comprisesan arcuate panel partly at least surrounding the tube to progressivelyuncover said aperture, said panel being rigidly connected to saidfloating member.

5. A filling nose as set forth in claim 1, in which said limitingdelivery member comprises a frusto-conical tubular member insertedinside said tube with the greater base thereof of same diameter as saidtube connected therewith at a level beneath said aperture whereby liquidin said tube is compelled to pass through the small opening of saidfrusto-conical tubular member to be delivered in said tank thus reducingdelivery of liquid.

6. A filling nose as set forth in claim 1, in which further an annularmember is provided outside said tube to be integral therewith at adistance above said aperture .4 and beneath said fioating member, saidfilling nose further comprising an outer cylinder slidably mounted onsaid annular member and having an annular top portion bearing againstsaid tube whereby a variable volume chamber is delimited by said outercylinder and tube between said annular member and said annular topportion, a spring provided to urge said annular top portion towards saidannular member, a spring urged flap valve provided in said annular topportion to be operated by said floating member when the level of liquiddoes not reach said floating member, a calibrated duct carried by saidtube and provided for communication between said tube and said chamberfor progressively filling said chamber with liquid when liquid reaches alevel for which said floating member is raised thus causing closing ofsaid flap valve then further causing progressive raising of saidcylinder, an annular panel constituting said valve controlling saidaperture and rigidly connected to said cylinder whereby said panel isactuated by said cylinder to progressively uncover said aperture whensaid chamber is progressively filled with liquid coming from said tubethus allowing passage of liquid from said tube to said tank through saidaperture without passing through said limiting delivering member.

7. A filling nose as set forth in claim 6, comprising further stopmembers provided on said cylinder to limit the travel thereof in bothdirections.

References Cited UNITED STATES PATENTS 2,940,467 6/1960 Smith 137-433 XHOUSTON S. BELL, JR., Primary Examiner US. Cl. X.R. 137-433; 13837

